The concentration in mol/L of the chemist's potassium iodide solution : = 4.4 x 10⁻⁴ M
<h3>Further explanation</h3>
Given
88. μmol of Potassium iodide
200. mL volumetric flask
Required
The concentration
Solution
Molarity is a way to express the concentration of the solution
Molarity shows the number of moles of solute in every 1 liter of solute or mmol in each ml of solution
Conversion :
88. μmol = 88 . 10⁺⁶ mol = 8.8 10⁻⁵ mol
200 ml = 0.2 L
The molarity :
= n : V
= 8.8.10⁻⁵ : 0.2
= 4.4 x 10⁻⁴ M
Answer:
The asthenosphere is the denser, weaker layer beneath the lithospheric mantle. It lies between about 100 kilometers (62 miles) and 410 kilometers (255 miles) beneath Earth's surface. The temperature and pressure of the asthenosphere are so high that rocks soften and partly melt, becoming semi-molten.
Explanation:
It is a limiting reactant. Not a catalyst as a catalyst is <em>not</em> used up in a reaction
Mass number = protons + neutrons.
An electrically neutral atom has not formed an ion yet, so as of now, the number of electrons = number of protons.
So, number of protons in gallium is = 31
Thus, mass number= 31 + 39
= 70.
Answer:
D
Explanation:
Drilling through the earth to reach areas hot enough to create steam is difficult because the drill can break down deu to hardness of the rocks